diff --git a/Adapter/GD.php b/Adapter/GD.php
index b5172da..36ba04e 100644
--- a/Adapter/GD.php
+++ b/Adapter/GD.php
@@ -53,6 +53,12 @@ public function __construct()
             throw new \RuntimeException('You need to install GD PHP Extension to use this library');
         }
     }
+    
+    public function __destruct()
+    {
+        if (null !== $this->resource)
+            imagedestroy($this->resource);
+    }
 
     /**
      * {@inheritdoc}